颗粒级配分析 meaning in Chinese

particle-size analysis

The toad nutrient of floods increases as the sediment concentration increases , and there is nearly a linear relationship between them , by analysing the particle size of the sediment , we can conclude that the reason of the liner relationship is the resourse of flood nutrient and the sediment nature
通过对洪水中下层泥沙做颗粒级配分析，推断出这种结果主要是由洪水养分成因及洪水中下层泥沙粒径特性决定的。
In order to know the characteristics of the material , analysis on the particle gradation and the related tests on seepage and seepage deformation are made , with which the problems related to the cushion layer material mainly composed of the natural sandy gravel are solved , and the construction demand is met as well , which can provide a reference for the other similar project
为掌握其特性，进行了颗粒级配分析、渗透和渗透变形等项试验，研究解决了以天然砂砾料为主的垫层料的水力学指标问题，满足了工程需要，可为类似工程应用提供参考。